Brando5641

iTrader: (3)

What gear/rpm are you at with each?

i have 3.42's and they are killing me at the track. i am hitting the rev limiter in 3rd about 50' before the line.

also are all the 10 bolts 7.5'' ring gear in the fire chickens?

Oldsmobility85

iTrader: (1)

I was running a 4.10 with a 28" et street radial and going through the traps in the 1/8 mile at 6200 @ 100mph. Thats in 3rd gear with an auto. I assume you have a stick car.

CamaroZ28_LS1

iTrader: (5)

yes all 10 bolt's in F-bodies are the weak *** 7.5" rear ends.

And I'd go with a 3.89 gears if your looking for decent 8th mile track gears. Just seems logical. I am sure you would hit 4th. I didn't like the top end with 4.10's... I'd hit like 130mph and had to shift into 5th... and I don't like to use over drive gears that much. That's not 130mph on a track lol. I run 3.75 gears as of now with my Moser 9".

Oldsmobility85

iTrader: (1)

Yeah as if 130mph isn't fast enough. If you want to drag race and traction isnt an issue I highly recomend the 4.10. Its not too extreme and it will make plenty of axle torque to get the car moving and reduce short times.

Brando5641

iTrader: (3)

this is for 1/4

Oldsmobility85

iTrader: (1)

Well you really didn't give us any info for us to work with so I just told you my experience. You should probably just put 3.23's in it so you can race to 180+ mph.

Brando5641

iTrader: (3)

yea and i can put neon lights under it and a coffee can.

mynameisray

iTrader: (4)

YES! lol

GT_EATR

iTrader: (1)

How much difference in the 1/4 mile would the 4.56 give me over the 4.10s? I have a 98 Z28 (M6) with cam/intake/boltons and 150 wet kit..